Door-operating mechanism for dump-cars.



B. W. KADEL.

DOOR 01 11121111113 MECHANISM FOR DUMP (mas.

AIPLIGATION FILED 9110.23, 1912.

Patented Sept. 2, 1913.

2 SHEETS-SHEET 1.

B. W KADEL. DOOR ()PEBATING MECHANISM FOR DUMY ems.

APPLIOATIOH FILED DEC. 23. ll'i.

Patented Sept. 2, 1913.

2 alumn -8mm 2 I WHMWo the hand wheel i will be rotated and will I musethe winding shaft 1 to rotate Wintling the chains 10 upon the windingdrums 9 unit. through the. hooks 11 and links 12, Ir-owing tho doorsinward, against the edges of the lll(.llii\ tl holtoin 13. The chains 10are of .ueh length that as the doors come in contact. with the edges ofthe inclined i101} tom 15, the llOOlts will he in position to on1- bracethe vinding drum above deseriheii, with the line Of-fiiii'filll slightlybeyond the center of the drum or shaft, that is, the line passingthrough the pivot point on the door and the point of contact. betweenthe hook and the drum. When in this position the strain on the door dueto the pressure upon it of the contents of the car will he. sustained bythe hook as .1 direct puil upon th-o winding drum, the pull in onotiireetion of one door lacing. howm'er, hnhinccti by the pull of theother hook since the hooks of both chains enihrnco the winding tlrni'n.Ali torsional strain on the wint'ling tiii'nni will be thus lLVOitl. Thelinks 1'2 are so connevtml with the hooks it its to lltl'i l the hooksfrom swiveling. The connection may he 1L pivotal or rigid connection.The point at which the chain is connected with the hook is in line withthe lcng'itnriinal line of the link Stirrupsorguicies1t) through. whichthe links 12 pass freely are provided beneath the onter p rtion of theiKlCiiEJQtl bottoms ii) to mo vent the possibility oi the l op mrq ontothe track in 02133 broken. "hen it is desired. to release the doors. thehand wheel ei. turned i the roper direction and. throngh the, frictionof the hooks on the tirnine, the hooks will he discngng 'i from thewinding (trunk-1 anti the further twin of 1-. ii! unwind the iiliiliilliheir heceioi n in swing opsin. 21 iilt ii in Fig.

in Figs. 3 and lion npnhod. to hinged (loo; in

' i wmnr the wi the tloor, mi the (,ilR.-..i on the shaft. The llithoolei l is qiiY-J e onln'r rt bracket 17 w... ii: to the nin h?- sideof, is'hoii the (ii Showl': in futil Hm". train, it the i f tllthti weshown the invon- E a tint. hot v nook to t end of the bracket preventsth hoot-I ir twisting.

in Figs. and 6 I have shown the inven tion applied to (lump our in whichtwo doors 13 are used niveting t the mi" the opening closed h thwn, the(loo released swinging in the .tion inch by dotted lines in o. In thiscor tion a link 12 is pivotaily connected to each door and the two linksare brought together at their upper ends and the ends; oi both pivotnllyconnected to the shank end. 1 the hook 11. The winding shaft 1. is pro..(lei'i with a winding drum 9 to receive the ri the Winning drum is Withratchet wheel 20 with Wlliif 21 engages. Wh n the {lo position the lineof -=t will he nearly perpe wil in :mstaiiwd in; wh ch 735 ii. theconstruction above LiL'SC of siith attuneto lotatu this line oi strainbeyond. the center. of the drum and shaft.

The tie-vice lilttj uf course. he

in when in closed position. Having thus eiQFlCiibtKl in in ention 1claim is:

i. in a (h rung a ih, 21H)

